diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2018-05-30 22:06:42 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2018-06-04 20:07:31 +0300 |
| commit | bed4e9cfab93a0f3d0144cb919820e6d5c40b8b1 (patch) | |
| tree | 5d4ab675507c72f640e0e61d5ba9e2cc2235b7cf | |
| parent | f2b775f5df661277d1b5662171f58c04adbdc97f (diff) | |
| download | linux-bed4e9cfab93a0f3d0144cb919820e6d5c40b8b1.tar.xz | |
PCI: shpchp: Fix AMD POGO identification
The fix for an AMD POGO erratum related to SHPC incorrectly identified the
device. The workaround should be applied only for AMD POGO devices, but it
was instead applied to:
- all AMD bridges, and
- all devices from any vendor with device ID 0x7458
Fixes: 53044f357448 ("[PATCH] PCI Hotplug: shpchp: AMD POGO errata fix")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/pci/hotplug/shpchp_ctrl.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c index bedda5bda910..1047b56e5730 100644 --- a/drivers/pci/hotplug/shpchp_ctrl.c +++ b/drivers/pci/hotplug/shpchp_ctrl.c @@ -585,13 +585,13 @@ static int shpchp_enable_slot (struct slot *p_slot) ctrl_dbg(ctrl, "%s: p_slot->pwr_save %x\n", __func__, p_slot->pwr_save); p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); - if (((p_slot->ctrl->pci_dev->vendor == PCI_VENDOR_ID_AMD) || - (p_slot->ctrl->pci_dev->device == PCI_DEVICE_ID_AMD_POGO_7458)) + if ((p_slot->ctrl->pci_dev->vendor == PCI_VENDOR_ID_AMD && + p_slot->ctrl->pci_dev->device == PCI_DEVICE_ID_AMD_POGO_7458) && p_slot->ctrl->num_slots == 1) { - /* handle amd pogo errata; this must be done before enable */ + /* handle AMD POGO errata; this must be done before enable */ amd_pogo_errata_save_misc_reg(p_slot); retval = board_added(p_slot); - /* handle amd pogo errata; this must be done after enable */ + /* handle AMD POGO errata; this must be done after enable */ amd_pogo_errata_restore_misc_reg(p_slot); } else retval = board_added(p_slot); |